<template>
    <div class="loginOne_container">
        <div class="login_box">
            <!-- 头像区 -->
            <div class="avatar_box">
                <img src="../assets/avatar.jpg" alt="">
            </div>
            <!-- 登录表单区 -->
            <el-form ref="loginFormRef" label-width="0px" class="login_form" :model="form" :rules="rules" >
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="form.username"  prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                 <el-form-item prop="password">
                    <el-input v-model="form.password"  prefix-icon="iconfont icon-3702mima" type="password"></el-input>
                </el-form-item>
                <!-- 按钮区 -->
                 <el-form-item class="btns">
                     <el-button type="primary" @click="login">登录</el-button>
                     <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
export default {
    name:'LoginOne',
    data(){
        return{
            // 表单数据绑定
           form: {
          username: 'admin',
          password:'123456',
         
        } ,
        // 表单验证
        rules:{
            // 验证用户名是否合法
            username:[
                { required: true, message: '请输入登录名称', trigger: 'blur' },
                 { min: 3, max: 10, message: '长度在 3 到 10个字符', trigger: 'blur' }
            ],
            // 验证密码是否合法
            password:[
                 { required: true, message: '请输入登录密码', trigger: 'blur' },
                 { min: 6, max: 15, message: '长度在 6 到 15个字符', trigger: 'blur' }
            ]
        }
        }
    },
    methods:{
        // 点击重置按钮，重置登录表单
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields();
            // console.log(this);
        },
        // 表单欲验证
        login(){
            this.$refs.loginFormRef.validate(async valid=>{
                // console.log(valid);
                if(!valid) return ;
               const {data:result} = await this.$http.post('login',this.form);
            //    console.log(result);
            if(result.meta.status!=200) return this.$message.error("登录失败");
            this.$message.success("登陆成功")
            // 1将登陆成功之后的token保存到客户端的sessionstorage中
                // 1.1项目中除了登录之外的其他API接口，必须在登录之后才能访问
                // 1.2token只应在当前网站打开期间有效，所以将token保存在session storage中
            // 2.通过编程式导航跳转到后台主页，路由地址是 /home
            // console.log(result);
            window.sessionStorage.setItem("token",result.data.token);
            // 2.通过编程式导航跳转到后台主页，路由地址是 /home
            this.$router.push("/home")

            })
        },
    }
}
</script>
<style lang="less" scoped>
    .loginOne_container{
        background-color: #2b4b6b;
        height:100%;
    }
    .login_box{
        width:450px;
        height:300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left:50%;
        top:50%;
        transform: translate(-50%,-50%);
        .avatar_box{
            height:100px;
            width:100px;
            border:1px solid #eee;
            border-radius: 50%;
            padding:5px;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            left:50%;
             transform: translate(-50%,-50%);
             background-color: #fff;
            img{
                width:100%;
                height: 100%;
                border-radius: 50%;
                background-color: #eee;
            }
        }
        .login_form{
            position: absolute;
            bottom:0;
            width:100%;
            padding: 20px;
            box-sizing: border-box;
        }
        .btns{
            display: flex;
            justify-content: flex-end;
        }
    }
</style>